handyman 1 #1 Posted July 10, 2010 Would the carb from an Onan 16hp interchange with a 20hp. I don't have both in front of me to compare? Share this post Link to post Share on other sites
Kelly 1,031 #2 Posted July 11, 2010 If they are the same series engine they should bolt on, as for runing right not sure never tried it, but I'm sure it will run. Share this post Link to post Share on other sites
